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Nerve compression syndrome, or compression neuropathy, or nerve entrapment syndrome, is a medical condition caused by chronic, direct pressure on a peripheral nerve. [1] It is known colloquially as a trapped nerve, though this may also refer to nerve root compression (by a herniated disc, for example). Its symptoms include pain, tingling ...
Rarefaction is the reduction of an item's density, the opposite of compression. [1] Like compression, which can travel in waves (sound waves, for instance), rarefaction waves also exist in nature. A common rarefaction wave is the area of low relative pressure following a shock wave (see picture). Rarefaction waves expand with time (much like ...
Compartment syndrome. Compartment syndrome is a condition in which increased pressure within one of the body's anatomical compartments results in insufficient blood supply to tissue within that space. [6][7][8] There are two main types: acute and chronic. [6] Compartments of the leg or arm are most commonly involved.
Thoracic outlet syndrome (TOS) is a condition in which there is compression of the nerves, arteries, or veins in the superior thoracic aperture, the passageway from the lower neck to the armpit, also known as the thoracic outlet. [ 1 ] There are three main types: neurogenic, venous, and arterial. [ 1 ] The neurogenic type is the most common and ...
The compression even be dynamic, where compression may only be present during certain activities and positions. [1] In deep gluteal syndrome, patients often have sciatic radiculopathy when sitting but not standing. [10] Studies on compression and nerve function have found a dose-respondent relationship between pressure and duration.
Neurogenic claudication (NC), also known as pseudoclaudication, is the most common symptom of lumbar spinal stenosis (LSS) and describes intermittent leg pain from impingement of the nerves emanating from the spinal cord. [1][2] Neurogenic means that the problem originates within the nervous system. Claudication, from Latin claudicare 'to limp ...
Pudendal nerve entrapment (PNE), also known as Alcock canal syndrome, [1][2] is an uncommon [1][3][4] source of chronic pain in which the pudendal nerve (located in the pelvis) is entrapped or compressed in Alcock's canal. There are several different types of PNE based on the site of entrapment anatomically (see Anatomy). [5]
Spinal cord compression is a form of myelopathy in which the spinal cord is compressed. Causes can be bone fragments from a vertebral fracture, a tumor, abscess, ruptured intervertebral disc or other lesion. When acute it can cause a medical emergency independent of its cause, and require swift diagnosis and treatment to prevent long-term ...